2. A study in which subjects took 1500 mg. of omega-3 fatty acids plus small amounts of nutrients for 12 weeks, showed _______ improvement in dry eye. Clue: noteworthy

4. Anti-glycation compounds such as those containing carnosine may be preventive, and indeed, carnosine reverses lens _______ in human trials. Clue: cloudiness

7. Things you can do to prevent a big loss to your visual efficacy are to use N-acetylcarnosine eyedrops containing _______ . Also omega-3 and antioxidant supplements, along with improving humidification at your work environment. Clue: humectant (pl.)